Pipe coupling



Jan. 1, 1952 A. H. sALMoND ETAL PIPE COUPLING Filed Sept. 24, 1949 lPatented Jan. 1, 1952 PIPE ooUPLmG Alexander H.' Salmond and Thomas Denluck,v

' Victoria, British Columbia, Canada j Application the obiects of which are to provide a joint, or pipe connector in two parts, each of which part is semi-spherical as regards its main p^rtion and extends integrally as a tubular pipe connecting po tion for the passage of fluids through the coupling, which latter portions are threaded for the reception of pipes or rods if the coupling is being used as a rod connector for which it is also well adapted, an external union is provided to connect the two portions together.

An advantage in our invention is that the two parts of the coupling may be adjusted to any relative angularity to provide for the joining of two 'pipes or rods, the axial alignment of which are not coincident, and that there is no limitation to the degree of obtuse angularity between the axes of the pipes or rods to be connected ranging from 90 degrees to a perfectly straight axial coincidence, which angular adjustment is september 24, 1949, serial No. In Canada July 29, 1794i.)v

1 C`laim. Cl. 285-123) a considerable advantage in such connections v so called universal couplings, and eliminates elbows and pipe bending, and an essential improvement is that the passageway is open throughout the length of the coupling due to the absence of the usual internal cap-screw or pivot bolt for connecting the two semi-spherical or similar conventionally shaped parts together, which parts may similarly be termed hemis'pheroids.

There `are no internal springs or nuts in our invention, the tightening of the joint or c0upling being accomplished by merely turning an exterior union member to bring the contacting faces tightly together.

With 'these objects and advantages in view this invention consists in the novel features of construction hereinafter described and claimed, andgi-rthe drawings accompanying this specification it; must be observed thatfsimilar numerals referto similar parts throughout the different views.'

Fig; lis a viewv of the completec'o'upl-ing for joining two straight-in-line pipes together.

Fig. 2 isa view showing the two coupling parts apart.

Fig. 3 is a view of the coupling as used for a degree connection.

Fig. 4 is a part sectionalized view showing the angular adjustability of the coupling.

Fig. 5 is a view of the union in section used for connecting the two elements of the coupling together.

With reference to the drawings the numeral I. indicates one semi-spherical part of this pipe coupling, and the numeral la refers to the other semi-spherical part thereof, each of which part is chambered as indicated at 2 and 2a respectively. Each said part has a tubular extension socket 3 and 3a; respectively, and integral therewith, which may be threaded as indicated in Figure 3, and each said separate part communicates with its chambered part mentioned. Thus there is a clear passageway for iiuid through this coupling without any kind of obstruction, which is the main object of this invention.

The two portions of the coupling are illustrated as separated in Fig. 2, to demonstrate their connection features. One part I is externally threaded circumferentially as at 4 and is formed with an annular rib 5 of large internal diameter compared with that of the extension members 3 and 3a. This rib 5 fits into a circular iiange or shoulder 6 of the coupling member I a to contact the ilat annular face 'l of the member I from which the rib 5 extends. A gasket could be advantageously inserted between these two flat faces.

The coupling of the two parts in this joint is done by means of an internally threaded union 8 which screws on the threads 4, and would be secured by a wrench. The member la is provided with a circular flange 9 projecting outwardly from the outer circumference thereof, over which flange a circular clamping rim i!) of the union ,nts so that the two half parts of the coupling may be drawn together tightly as a connected unit when'the union is screwably turned.

There are recesses Ii in the extension members 3 and 3a which permit a minimum sized union beingzused so that the coupling will appear as compact and neat in shape as possible.

Whereas 'the terms semi-spherical and hemispherical, and their relative equivalents, have been used herein, in the specification and claim,

it is to be understood that such terms refer to the same things, which equivalency applies also to the term collar as the same'thng as a union, as used herein.

What We claim and for which we desire Letters Patent is:

A pipe` coupling; comprising im combination a pair of substantially similar' mating components consisting of a hemispheroid, a socket projecting from the exterior side of the hemispheriea-L surface thereof, the axis of said socket being radially disposed in relation to said hemisplie roid, said axis lying at or about-45 degrees. from the produced plane oi the perimeter oli saisi hemispheroid, one of said hemispheroids being externally and perimentric'ally screw-threaded, the other being provided with an externally" pro-- jecting, perimetrical flange, an inwardly om jecting perimetrical flange on the hemispheroid annular inwardly projecting and perimetrcal rib of right-angular cross-section of the hemi- V spheroid which is screw-threaded, said inwardly projecting flange fitting into the interior angle formed by said rib cross-section, and abutting said rib, and an annular, internally screwthreaded eollan or union-v. for. uniting` said hemi sphenois..

ALEXANDER H. SALMOND. THOMAS DENLUCK.

REFERENCES CITED The following, references are of record in the ille:V of; patent:

UNITED; STATES PATENTS Numer Name Date 1,931,642: Haase -1 July 2, 1912 1,125,642 Blanchard Jan. 19, 1915 

